Environmental Sciences

Change Setup
📘 Comprehensive Syllabus & Examination Guide

Environmental Sciences

Official curriculum roadmap, subject/topic distribution, negative marking rules, pacing guidelines, and solved sample questions.

🎯 Mapped Subjects & Topic Question Distribution

Total Question Pool 100%
400 MCQs
Combined Active Syllabus
PEPA 1997 & Environmental Law
50 MCQs
Topic Pool
National Environmental Quality Standards (NEQS)
50 MCQs
Topic Pool
Ecology & Ecosystem Dynamics
50 MCQs
Topic Pool
Biodiversity & Wildlife Conservation
50 MCQs
Topic Pool
Water Pollution & Wastewater Treatment
50 MCQs
Topic Pool
Air Pollution & Control Technologies
50 MCQs
Topic Pool
Solid & Hazardous Waste Management
40 MCQs
Topic Pool
EIA, IEE & Environmental Management
30 MCQs
Topic Pool
📊 Question Pool Structure
400 MCQs across fundamental, intermediate, and advanced concept tiers.
⚡ Recommended Pacing
45 to 60 seconds per MCQ. Flag complex problems and preserve 10 minutes for final revision.
⚖️ Scoring & Negative Marking
+1 mark per correct answer. In competitive tests with negative marking, -0.25 applies for incorrect guesses.

💡 Strategic Preparation & Exam Hall Guidelines

To maximize your score on Environmental Sciences, candidates are advised to follow a structured three-pass approach. In the First Pass, solve all direct recall and formula-based questions within 30 seconds each to secure foundational marks. In the Second Pass, tackle multi-step analytical and quantitative reasoning problems. In the Third Pass, review marked questions and verify calculations.

Practice with the interactive player below to evaluate your speed and accuracy under real exam pressure. Every question features full mathematical formulas, step-by-step worked solutions, and conceptual explanations vetted by Apex Rankers Academy subject matter specialists.

Ready to test your knowledge? Launch interactive 1-by-1 practice with instant feedback, bookmarking, and step-by-step rationales.
Solved Blueprint Examples

📝 Pre-Rendered Solved Sample Questions & Detailed Solutions

Showing 10 solved representative questions

Review the solved problems below to understand question phrasing, answer choices, and step-by-step solution logic prior to starting the full interactive practice drill:

Sample Question 1
PEPA 1997 & Environmental Law Easy • Environmental Sciences
The Pakistan Environmental Protection Act (PEPA) was enacted in which year?
A 1983
B 1997
C 2000
D 2010
✓ Correct Answer: B - 1997
📖 Step-by-Step Solution & Conceptual Rationale:
The Pakistan Environmental Protection Act was passed by the Parliament and received the assent of the President in December 1997, replacing the earlier Environmental Protection Ordinance of 1983.
Sample Question 2
PEPA 1997 & Environmental Law Medium • Environmental Sciences
Under Section 3 of the Pakistan Environmental Protection Act 1997, who is the Chairperson of the Pakistan Environmental Protection Council (PEPC)?
A The Chief Justice of Pakistan
B The Prime Minister of Pakistan (or an individual nominated by the PM)
C The Director General of Pak-EPA
D The Minister for Climate Change exclusively
✓ Correct Answer: B - The Prime Minister of Pakistan (or an individual nominated by the PM)
📖 Step-by-Step Solution & Conceptual Rationale:
Under Section 3(1) of PEPA 1997, the Pakistan Environmental Protection Council is the apex environmental policy body, chaired by the Prime Minister or such other person as the Prime Minister may nominate.
Sample Question 3
PEPA 1997 & Environmental Law Medium • Environmental Sciences
Who serves as the ex-officio Secretary of the Pakistan Environmental Protection Council (PEPC)?
A Secretary of the Ministry dealing with the subject of Environment / Climate Change
B Director General of Pak-EPA
C Attorney General for Pakistan
D Chairman WAPDA
✓ Correct Answer: A - Secretary of the Ministry dealing with the subject of Environment / Climate Change
📖 Step-by-Step Solution & Conceptual Rationale:
Under Section 3(4) of PEPA 1997, the Secretary to the Government of Pakistan in charge of the Ministry dealing with Environment serves as the Secretary of the Council.
Sample Question 4
PEPA 1997 & Environmental Law Hard • Environmental Sciences
How often is the Pakistan Environmental Protection Council (PEPC) statutorily required to meet under Section 3(6) of PEPA 1997?
A At least once a month
B At least once every six months
C At least once in a year
D At least once every two years
✓ Correct Answer: C - At least once in a year
📖 Step-by-Step Solution & Conceptual Rationale:
Section 3(6) of PEPA 1997 mandates that the Council shall meet at least once in a year.
Sample Question 5
PEPA 1997 & Environmental Law Easy • Environmental Sciences
Under Section 5 of PEPA 1997, who is the administrative and operational head of the Pakistan Environmental Protection Agency (Pak-EPA)?
A Inspector General of Forests
B Director General (DG)
C Environmental Magistrate
D Chairman Senate
✓ Correct Answer: B - Director General (DG)
📖 Step-by-Step Solution & Conceptual Rationale:
Section 5(2) of PEPA 1997 provides that the Federal Agency (Pak-EPA) shall be headed by a Director General appointed by the Federal Government.
Sample Question 6
PEPA 1997 & Environmental Law Medium • Environmental Sciences
Which section of PEPA 1997 strictly prohibits the discharge or emission of any effluent or waste in excess of the National Environmental Quality Standards (NEQS)?
A Section 6
B Section 11
C Section 15
D Section 25
✓ Correct Answer: B - Section 11
📖 Step-by-Step Solution & Conceptual Rationale:
Section 11(1) of PEPA 1997 mandates: 'Subject to the provisions of this Act and the rules and regulations made thereunder no person shall discharge or emit or allow the discharge or emission of any effluent or waste or air pollutant or noise in an amount, concentration or level which is in excess of the National Environmental Quality Standards'.
Sample Question 7
PEPA 1997 & Environmental Law Easy • Environmental Sciences
Which section of PEPA 1997 requires project proponents to file an Initial Environmental Examination (IEE) or Environmental Impact Assessment (EIA) before commencing construction?
A Section 11
B Section 12
C Section 14
D Section 18
✓ Correct Answer: B - Section 12
📖 Step-by-Step Solution & Conceptual Rationale:
Section 12(1) of PEPA 1997 states that no proponent of a project shall commence construction or operation unless they have filed with the Agency an IEE or, where the project is likely to cause an adverse environmental effect, an EIA, and obtained approval.
Sample Question 8
PEPA 1997 & Environmental Law Hard • Environmental Sciences
Under Section 12(2) of PEPA 1997, what is the statutory time limit within which the Agency must review and communicate its decision on an IEE/EIA approval?
A 30 days
B 60 days
C Four months (120 days)
D One year
✓ Correct Answer: C - Four months (120 days)
📖 Step-by-Step Solution & Conceptual Rationale:
Section 12(2) stipulates: 'The Federal Agency shall review the initial environmental examination and accord its approval, or require submission of an environmental impact assessment... or approve the environmental impact assessment... within a period of four months'.
Sample Question 9
PEPA 1997 & Environmental Law Medium • Environmental Sciences
Which section of PEPA 1997 completely prohibits the import of hazardous waste into Pakistan and its territorial waters?
A Section 10
B Section 13
C Section 17
D Section 21
✓ Correct Answer: B - Section 13
📖 Step-by-Step Solution & Conceptual Rationale:
Section 13 of PEPA 1997 explicitly states: 'No person shall import or cause to be imported for disposal, or generate, transit or dispose of, any hazardous waste into Pakistan and its territorial waters and Exclusive Economic Zone'.
Sample Question 10
PEPA 1997 & Environmental Law Medium • Environmental Sciences
Under Section 14 of PEPA 1997, what is required for any person to handle hazardous substances?
A A license issued by the Federal Agency or an authority under applicable laws
B Only verbal permission from the local police
C Payment of sales tax
D Approval from the Ministry of Tourism
✓ Correct Answer: A - A license issued by the Federal Agency or an authority under applicable laws
📖 Step-by-Step Solution & Conceptual Rationale:
Section 14 mandates that no person shall generate, collect, consign, transport, treat, dispose of, store, handle, or import any hazardous substance except under a license issued by the Federal Agency.
Practice All 400 Questions Interactively Test your knowledge in real-time with continuous progress saving, instant scoring, and performance analytics.